Retarding thrust file holder



June 30, 1953 E. TURY RETARDING THRUST FILE HOLDER 2 Sheets-Sheet 1Filed May 29, 1952 INVENTOR 06.5115 702) x {we BY %Wflmmz ATTORNEYS June30, 1953 TURY RETARDING THRUST FILE HOLDER Filed May 29, 1952 2Sheets-Sheet 2 INVENTOR fuaaus 7Z/ev ATTORNEYS Patented June 30, 1953UNITED STATES PATENT; OFFICE V I 2,643,442 i .RETARDING THRUST FILEHOLDER EugeneTury, Alexandria, Va-.:' I Application May 29, 1952, SerialNo. 290,745

3. (dlaims. (01. 29-80) This invention relates to file holders, and moreparticularly has reference to a file holder adapted mainly, but notnecessarily, to the support of an automobile body sheet metal file.

Files of the type stated are generally fixedly associated with theholders in which the files are mounted, and as a result, the initialmovement of the holder imparted thereto during use causes the supportedfile to bite into the work instantly. As a result, a considerable amountof energy must be expended in giving movement to the holder and the filesupported therein. Since the holder and its associated file must bereciprocated constantly, the worker tends to'become fatigued and isunable to complete the assigned task with the rapidity desired.

It is, accordingly, the main object of the present invention to providea holder so designed as to eliminate the initial resistance to thethrust given the holder and file at the start of their movement over thework.

Another important object is to provide a holder of the type stated sodesigned as to permit the file and holder to be held against relativemovement whenever desired, thus to permit use of the device as aconventional, fixedly connected file holder.

A further important object of the present invention is to provide aholder of the type stated so designed as to permit the file to beattached to or removed from the remaining parts of the device withconsiderable speed and ease.

Yet another important object is to provide a file holder which will berugged, can be manufactured at relatively low cost, and will comprise aminimum of parts simply arranged.

Other objects will appear from the following description, the claimsappended thereto, and from the annexed drawings, in which like refereneecharacters designate like parts throughout the several views, andwherein:

Figure 1 is a side elevational view of a file holder formed inaccordance with the present invention, a conventional file being mountedon the holder;

Figure 2 is a top plan view;

Figure 3 is a longitudinal sectional view, taken substantially on line3-3 of Figure 2;

Figure 4 is a view similar to Figure 3, illustrating the parts as theyappear immediately after the holder has been given its initial forwardmovement;

Figure 5 is a transverse sectional view taken on line 5-5 of Figure 3;

Figure 6 is a transverse sectional view taken substantially on line 5-6of Figure 3;

- Figure '7 is a transverse sectional view'taken substantially on line'l--l of Figure 3; and

Figure 8 is a transverse sectional view take substantially on line 8-8of Figure 3. 1

Referring to the drawings in detail, the reference numeral 10 designatesgenerally a slide embodied in the construction, said slide being formedwith an elongated, flat web [2 integrally formed at opposite sidesthereof with depending side flanges I4. The lower edge portions of theside flanges [4 are bent'outwardly and folded upon themselves to formlongitudinal guides l6 projecting outwardly in opposite directions fromthe respective sides of the slide Ill, and extending through the fulllength of said slide.

Fixedly mounted upon the web l2, contiguous to the rear end thereof, isan upstanding handle 18, which may be of any desired configuration, andis adapted to receive one hand of the user. The handle 18 will betermed, for purposes of clarity, a rear handle, to-distinguish it from afront handle 20 mounted upon the forward portion of the web l2 andadapted'to receive the other hand of the user.

It will be seen from Figures 3 and 4 that I secure the front handle 20'to the body l2 of the slide by means of a screw 22-""extending upwardlythrough the slide into the lower end of the bandle. The screw 22 serves,at the same time, to secure to the under side of the body or web [2 arear stop plate, generally designated 24, formed along its front edgewith "a depending lip 26.

A front stop plate 28 is fixedly connected to and projects beyond thefront end of the slide Ill. The front stop plate 28 is formed, in thisconnection, with a depending stop flange 30 along its projecting frontedge. The stop flange 30 extends downwardly below the plane of the webl2 a substantially greater distance than'the lip 26 of the rear stopplate (see Figures 3 and 4), and is provided on its near surface with aresilient cushion 32.

A spring 34 is connected at its opposite ends to the rear end of theslide l0, and the rear end of a'retainer 36, the retainer 36, like theslide l0, being readily formed from a single piece of flat metalmaterial having a flat body 38 formed integrally along opposite sidesthereof with upwardly and inwardly extended guide flanges Mlcomplementary to and receiving the guides [6 of the slide [0.

Formed upon the rear end of the body 38, and disposed medially betweenthe opposite sides of said body, is an upstanding, apertured earn inwhich the rear end of the spring 34 is hooked, thefront end of-saidspringbeing hooked through an opening 43 formed in the web 12 contiguousto the rear edge thereof.

Mounted upon the front end portion of the retainer 36 is an upstandingabutment 44, said abutment being suitably cushioned and being securedfixedly to the body 38 of the retainer by a screw 46. The screw 46 alsoserves to connect fixedly and separably to the under side of theretainer the front end of a conventional file 48. The file 48 isprovided at the front and rear ends thereof with countersunk,longitudinally aligned openings receiving, respectively, the screw 46and a screw 50 that fastens the rear end of the file to the retainer.The screw 58, as will be noted from Figures 3 and 4, is threadable intoa nut 52 welded or otherwise fixedly connected to the body 38 adjacentthe rear end of said body.

In some instances, the user may desire to operate the device as aconventional file holder, wherein the file supported thereby is fixedlyrelated to the remaining parts of the assembly, including the handles.In this event. a screw 56 carried by the slide l and threadable in a nut58 welded to the under side of the slide, is

threaded downwardly into a nut 54 welded or otherwise fixedly connectedto the upper surface of the body 38 in a manner particularly well shownin Figure 8. When the screw 56 is threaded downwardly in this manner,the slide I0 is held against movement relative to the retainer 36.

Normally, however, the slide H) has sliding movement longitudinally ofthe retainer. Thus, in use, after a suitable file 48 has been secured tothe under surface of the retainer, the device is applied to the workwith the parts in the positions thereof illustrated in Figure 3.

The user then exerts forward thrust against the handles l8 and 20, andthe slide i0 is given movement longitudinally and forwardly of theretainer 36 to the position illustrated in Figure 4. This movement isadapted to expand the spring 34.

It will be readily appreciated, in this connection, that there is aminimum of resistance to the forward movement of the slide 10, since theinitial forward motion does not'carry with it the file 48.

The spring 34 exerts only a slight restraining force on the forwardmotion of the slide [0, so that the slide 10 is given momentum duringits forward motion simultaneously with engagement of the rear stop plate26 against the cushioned abutment 44 of the retainer. Continued forwardmovement of the slide l0 then has the effect of carrying with it the.retainer 36, so that the file 48 is forced across the work piece, notshown.

When the file 48 has been moved across the work a desired distance, theentire assembly is raised slightly in the same manner in which aconventional file holder is raised preparatory to return thereof to itsinitial starting position. As a result, the spring 34 is permitted toexert its normal tendency to. contract, and this results in a return ofthe slide 10 and retainer 36 to the positions illustrated in Figure 3.The operation is then repeated until the work piece has been filed downto the desired extent.

The main advantage in the construction resides in its adaptability forimparting forward motion to the file 48 without requirement on the partof the user of exerting an additional force usually necessary to startthe file on its forward travel. As has been mentioned here-- inbefore,ordinarily, when a file is placed against a piece of work, it will biteinto the surface of the work, and it is quite difllcult to overcome itsinitial tendency to remain stationary. With the device illustrated anddescribed, however, the slide I0 is allowed to move forwardly almostwithout restraint, so that it will have gained momentum at the time itengages the retainer 46 for the purpose of moving the file across thework.

It is also believed to be an important characteristic of the device thatit can be used as a conventional file holder whenever desired byengaging the screw 56 with the retainer 36.

It maybe noted that when the spring 34 is allowed to contract at the endof the forward travel of the file 48, the front stop plate 30, whichextends downwardly into the plane of the body 38 of the retainer, willlimit forward movement of the retainer under the action of the spring34.

It is believed apparent that the invention is not necessarily confinedto the specific use or uses thereof described above, since it may beutilized for any purpose to which it may be suited. Nor is the inventionto be necessarily limited to the specific construction illustrated anddescribed, since such construction is only intended to be illustrativeof the principles of operation and the means presently devised to carryout said principles, it being considered that the invention comprehendsany minor changes in construction that may be permitted within the scopeof the appended claims.

What is claimed is:

1. In a file holder, a retainer adapted for the mounting of a filethereon and including a pair of longitudinal guide fianges extendingalong opposite sides thereof; a slide mounted upon the retainer formovement longitudinally of the retainer, said slide including a handleadapted to be grasped by a user and a pair of longitudinal guidesreceived within the guide flanges; a spring extendingv between the slideand retainer, respectively, and yieldably restraining the slide againstmovement relative to the retainer in one direction; stops on the slideand retainer, respectively, arranged to contact one another aftermovement in said direction by the slide relative to the retainer througha predetermined disstance, said stops engaging the slide and retainerfor joint movement in the same directionafter travel of the slide oversaid distance; and a stop on the slide positioned to limit movement ofthe retainer relative to the slide in an opposite direction under theaction of the spring, said first and said second-named stops beingrelatively arranged for spacing the first-named stops apart in theretainer-engaging position of the second-named-stop, and for effectingcontact between the first-named stops when the retainer is spaced fromand is out of engagement with said second-named stop.

2. In a file holder, a retainer adapted for the mounting of a filethereon, said retainer including a fiat, generally elongated body and apair of longitudinal guide flanges extending along opposite sides ofsaid body; a slide mounted upon the retainer for movement longitudinallyof the retainer, said slide including a fiat web paralleling and spacedabove said body, a pair of handles extending upwardly from the web andadapt d t b rasped by a user, and a pair of longitudinal guidesextending along opposite sides of the web and received within the guideflanges; a spring extending between the slide and re tainer,respectively, and yieldably restraining the slide against movement inone direction relative to the retainer; a pair of interengageable stopsmounted upon the slide and retainer, respectively, and disposed withinthe space between said Web and body, one of said stops depending fromthe web in said space and the other stop projecting upwardly from thebody in the path of said depending stop to contact the same aftermovement in said direction by the slide relative to the retainer througha predetermined distance, said stops engaging the slide and retainer forjoint movement in said direction after travel of the slide over saiddistance; and a stop on the slide positioned to limit movement of theretainer relative to the slide in an opposite direction under the actionof the spring, said .pair of stops and last-named stop being relativelyarranged for spacing apart of the stops of said pair in theretainer-engaging position of the last-named stop, and for effectingcontact between the stops of said pair when the retainer is spaced fromand is out of engagement with the last-named stop.

3. In a file holder, a retainer adapted for the mounting of a filethereon, said retainer including a flat, generally elongated body and apair of longitudinal guide flanges extending along opposite sides ofsaid body; a slide mounted upon the retainer for movement longitudinallyof the retainer, said slide including a flat Web paralleling and spacedabove said body; a pair of handles extending upwardly from the web andadapted to be grasped by a user, and a pair of longitudinal guidesextending along opposite sides of the Web and received within the guideflanges; a spring extending between the slide and retainer,respectively, and yieldably restraining the slide against movement inone direction relative to the retainer; a pair of interengageable stopsmounted upon the slide and retainer, respectively, and disposed withinthe space between said web and body, one of said stops depending fromthe web in said space and the other stop projecting upwardly from thebody in the path of said depending stop to contact the same aftermovement in said direction by the slide relative to the retainer througha predetermined distance, said stops engaging the slide and retainer forjoint movement in said direction after travel of the slide over saiddistance; a stop on the slide positioned to limit movement of theretainer relative to the slide in an opposite direc tion under theaction of the spring, said pair of stops and last-named stop beingrelatively arranged for spacing apart of the stops of said pair in theretainer-engaging position of the last-named stop, and for effectingcontact between the stops of said pair when the retainer is spaced fromand is out of engagement with the last-named stop; and means forreleasably holding the slide and retainer against movement relative toone another in either direction.

EUGENE TURY.

References Cited in the file of this patent UNITED STATES PATENTS NumberName Date 2,350,779 Lapkofi June 6, 1944 FOREIGN PATENTS Number CountryDate 179,587 Great Britain May 12, 1922

